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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Machine tools—Safety—Electrical discharge machines
Standard published on 29.8.2025
Selected format:Vacuum technology—Vacuum gauges—Specifications,calibration and measurement uncertainties for spinning rotor gauges
Standard published on 29.8.2025
Selected format:Safety devices for gas welding equipment—Part 1:Flame arrestor
Standard published on 29.8.2025
Selected format:Safety devices for gas welding equipment—Part 2:Other devices
Standard published on 29.8.2025
Selected format:Additive manufacturing—Technical specification for multi-laser beam powder bed fusion equipment
Standard published on 29.8.2025
Selected format:Technical specifications of flame-temperature image detection for coal-fired boiler
Standard published on 29.8.2025
Selected format:Specifications of tethered gas balloon
Standard published on 29.8.2025
Selected format:Fully-wrapped glass fibre reinforced composite cylinder with a high-density polyethylene liner for the storage of liquefied petroleum gas
Standard published on 29.8.2025
Selected format:Test for shop primers in relation to welding and allied processes—Part 1: General requirements
Standard published on 29.8.2025
Selected format:Test for shop primers in relation to welding and allied processes—Part 2: Welding properties of shop primers
Standard published on 29.8.2025
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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